3312 Series Double Sonic Hub (6mm D-Bore)

Competition eligibility

Legal for FIRST Tech Challenge (FTC) and FIRST Robotics Competition (FRC). Eligibility is set by each season's game manual — check the current rules before you compete.

Sonic Hubs are more balanced than even set screw hubs (and with just as much clearance). Make them your go-to hub for high speed applications leaving behind concerns about marred shafts or lost set screws. The pattern to fasten components to, and the clamping mechanism to hold the hub onto a shaft, are completely isolated from one another. This means you can tighten the dual pinch bolts to clamp down on a shaft and you haven't distorted the holes you need to use for mounting components to the hub. Likewise, you can fasten the hub to a gear, sprocket, pulley or wheel prior to tightening onto a shaft since the clamping mechanism is able to function regardless of what the hub is connected to. Since the Sonic Hub clamping mechanism is pulled in toward the center, the hub can fit in recesses and clear where a 1301 Series Clamping Hub cannot.Double Sonic Hubs are twice as long as the other Sonic Hubs. The added length warranted two additional pinch bolts for a mega-hold on the shaft. Having a hub of this length allows you to fasten parts to both sides with thread depth to spare.The 6mm D-Bore Double Sonic Hub is compatible with our 6mm D-shafting as well as the 5201 and 5202 Series Gear Motors. The 16mm width of the hub provides additional clamping force and surface area when compared to the 1309 Series Sonic Hubs. Furthermore, it provides additional thread depth to hold components on each side of the hub if needed.

size:6mm D-Bore

Technical drawing